Talk:Edmund Mortimer (rebel)

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The original article Edmund Mortimer combined two functions, disambiguous and an article on Edmund Mortimer, son of the 3rd Earl so I split it to make the disambiguous article and another one on the son of the 3rd Earl. I added an s by mistake. I redid the article without the extra letter. The article with the exra letter should be deleted, but I do not know how to do it.